Is it still possible to install and use the pocket word (*.psw) and pocket excel (*.pxl) filters in LO 4.3.2.2?? How can I install them??

Is it still possible to install and use the pocket word (.psw) and pocket excel (.pxl) filters in LO 4.3.2.2?? How can I install them??

I have the latest version of Java installed and the runtime environment enabled in tools > options > advanced.

I am on Windows 8.1 and have LO 4.3.2.2 installed with all components checked during installation.

Thanks!